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<head><meta charset="utf-8"><title>I-prioritize #75612 &quot;Illegal instruction&quot; from oxipng on ol… · t-compiler/wg-prioritization/alerts · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/index.html">t-compiler/wg-prioritization/alerts</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375612.20.22Illegal.20instruction.22.20from.20oxipng.20on.20ol.E2.80.A6.html">I-prioritize #75612 &quot;Illegal instruction&quot; from oxipng on ol…</a></h3>

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<a name="207103401"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375612%20%22Illegal%20instruction%22%20from%20oxipng%20on%20ol%E2%80%A6/near/207103401" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> triagebot <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375612.20.22Illegal.20instruction.22.20from.20oxipng.20on.20ol.E2.80.A6.html#207103401">(Aug 17 2020 at 03:23)</a>:</h4>
<p><span class="user-group-mention" data-user-group-id="3111">@WG-prioritization/alerts</span> issue <a href="https://github.com/rust-lang/rust/issues/75612">#75612</a> has been requested for prioritization.</p>
<h1><a href="https://forge.rust-lang.org/compiler/prioritization/procedure.html#assign-priority-to-unprioritized-issues-with-i-prioritize-label">Procedure</a></h1>
<ul>
<li>Priority?</li>
<li>Regression?</li>
<li>Notify people/groups?</li>
<li>Needs <code>I-nominated</code>?</li>
</ul>



<a name="207136536"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375612%20%22Illegal%20instruction%22%20from%20oxipng%20on%20ol%E2%80%A6/near/207136536" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Léo Lanteri Thauvin <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375612.20.22Illegal.20instruction.22.20from.20oxipng.20on.20ol.E2.80.A6.html#207136536">(Aug 17 2020 at 12:26)</a>:</h4>
<blockquote>
<p>This is a bit of a guess but cloudflare-zlib which is a dependency of oxipng is compiled with AVX enabled on Windows MSVC: <a href="https://gitlab.com/kornelski/cloudflare-zlib-sys/-/blob/c70f245e7c9533984aac95a28caed78df39e500a/sys/build.rs#L37">https://gitlab.com/kornelski/cloudflare-zlib-sys/-/blob/c70f245e7c9533984aac95a28caed78df39e500a/sys/build.rs#L37</a>. The i5-650 doesn't support AVX which would explain the illegal instruction.</p>
</blockquote>
<p>Seems like a noissue? Should we still ping notif groups e.g. Windows group?</p>



<a name="207166005"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375612%20%22Illegal%20instruction%22%20from%20oxipng%20on%20ol%E2%80%A6/near/207166005" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> apiraino <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375612.20.22Illegal.20instruction.22.20from.20oxipng.20on.20ol.E2.80.A6.html#207166005">(Aug 17 2020 at 16:35)</a>:</h4>
<p>Kind of related: support for Win7 has ended. I was curious if there are plans to demote Win7 from Tier1 (like already done for Apple 32bit platforms) or is MS Windows treated as a "single" platform (i.e. 7+8+10)</p>



<a name="207167429"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375612%20%22Illegal%20instruction%22%20from%20oxipng%20on%20ol%E2%80%A6/near/207167429" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> apiraino <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375612.20.22Illegal.20instruction.22.20from.20oxipng.20on.20ol.E2.80.A6.html#207167429">(Aug 17 2020 at 16:47)</a>:</h4>
<p>Maybe label with <code>O-windows-*</code>and keep it in on <code>P-medium</code> while we wait for further analysis?</p>



<a name="207167559"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375612%20%22Illegal%20instruction%22%20from%20oxipng%20on%20ol%E2%80%A6/near/207167559" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Léo Lanteri Thauvin <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375612.20.22Illegal.20instruction.22.20from.20oxipng.20on.20ol.E2.80.A6.html#207167559">(Aug 17 2020 at 16:48)</a>:</h4>
<p><span class="user-mention silent" data-user-id="250987">apiraino</span> <a href="#narrow/stream/245100-t-compiler.2Fwg-prioritization.2Falerts/topic/I-prioritize.20.2375612.20.22Illegal.20instruction.22.20from.20oxipng.20on.20ol.E2.80.A6/near/207166005">said</a>:</p>
<blockquote>
<p>Kind of related: support for Win7 has ended. I was curious if there are plans to demote Win7 from Tier1 (like already done for Apple 32bit platforms) or is MS Windows treated as a "single" platform (i.e. 7+8+10)</p>
</blockquote>
<p>You should probably ask <span class="user-mention silent" data-user-id="121055">Pietro Albini</span> or <span class="user-mention silent" data-user-id="116122">simulacrum</span></p>



<a name="207167732"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375612%20%22Illegal%20instruction%22%20from%20oxipng%20on%20ol%E2%80%A6/near/207167732" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Léo Lanteri Thauvin <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375612.20.22Illegal.20instruction.22.20from.20oxipng.20on.20ol.E2.80.A6.html#207167732">(Aug 17 2020 at 16:50)</a>:</h4>
<p><span class="user-mention silent" data-user-id="250987">apiraino</span> <a href="#narrow/stream/245100-t-compiler.2Fwg-prioritization.2Falerts/topic/I-prioritize.20.2375612.20.22Illegal.20instruction.22.20from.20oxipng.20on.20ol.E2.80.A6/near/207167429">said</a>:</p>
<blockquote>
<p>Maybe label with <code>O-windows-*</code>and keep it in on <code>P-medium</code> while we wait for further analysis?</p>
</blockquote>
<p>Or we could un-prioritize it until we have some more evidence that this is a problem on <code>rustc</code>'s side.</p>



<a name="207167798"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375612%20%22Illegal%20instruction%22%20from%20oxipng%20on%20ol%E2%80%A6/near/207167798" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Léo Lanteri Thauvin <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375612.20.22Illegal.20instruction.22.20from.20oxipng.20on.20ol.E2.80.A6.html#207167798">(Aug 17 2020 at 16:50)</a>:</h4>
<p>I'll ping windows group, maybe someone can take a look</p>



<a name="207416214"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2375612%20%22Illegal%20instruction%22%20from%20oxipng%20on%20ol%E2%80%A6/near/207416214" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> triagebot <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2375612.20.22Illegal.20instruction.22.20from.20oxipng.20on.20ol.E2.80.A6.html#207416214">(Aug 19 2020 at 14:39)</a>:</h4>
<p>Issue <a href="https://github.com/rust-lang/rust/issues/75612">#75612</a>'s prioritization request has been removed.</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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